Apparatus for cooling and lubricating crank-case engines.



PATENTED SEPT. 25, 1906.

G. BROWN. APPARATUS FOR COOLING AND LUBRIOATING CRANK CASE ENGINES.

APPLICATION FILED DEC. 7. 1905 55 house tvne.

-;,;1-UNITED sures GEORGE EATENT OFFICE.

BROWN, or CENTRAL AQULRRE, PORTO Rico. FOR COOLING AND LUBRlCATINGi CRANK-CASE ENGINES.

Patented Sept. 25, 1906.

I APPARA'WS Specification of Letters Patent. Application filed December 7, 1906. Serial No. 290,831. A 9

10mm it miy concern.- .r Bgitlin'own that zenpf the United States, residing in Central 'fltqu'iri'e, Porto Rico, have invented certain new and useful lm' ""for Coolin and Lu Iicating Crank-lease Engines, of w 'ch t-hefollowing is a specification. This invention relates to means for lubricating and cooling en ines of the Westinghouse t e, in which the crank is inclosed in A a suitab e case which serves as a container for thelubricant, so that upon each revolution of the crank the same is submerged in such lubricant in order to thoroughly lubri- 1 cats the crank-bearing.

e present invention has anion its objects to provide an a paratus in w ichthe condensed steam whio jfinds its way into the crankcase is disposed of in such a manner 29 that the level of the oil in the crank-case is automatieally maintained.

- A furtl'iler object of the invention is to provide means whereby the oil contained in the mixture of water and oil which is usually employed in the crank-case is conducted from said case and cooled in a suitable manner,

after which. it is reintroduced into the crank case in cooled condition so'as to have a maxi- -mum cooling and lubricating effect upon the 0- crank-bearing.

I is also an object of the invention to furan apparatusin which the operations just mentioned are effected by the movement of the crank-arm, the use of pumps or' other similar instrumentalities being unnecessary.

With these and other objects in View the invention consists in an apparatus for the purpose specified which embodies the novel features, arrangements, and combinations of parts to be hereinafter described, and recited in the appended claims. a In the accompanying drawings, in which 1corresponding parts are dcnotcdby the same reference characters, Figure 1 -,is a vertical section through the improved a paratns, showing the same in connection with a crankcaseengine; and Fig. 2 is a plan view ofthe same, parts of the engine being removed for the sake of clearness.

The device forinin the subject-matter of the invention is applicable to any engine in which a'-crank-case is employed but? have illustrated the same as being used in con junction with an upright engine of the W'csting Said engine is indicated by ref- I, GEoReE BROWN, a citi-' rovements in Apparatuserence-numeral 1, and the crank-case thereof, in which the connecting-rod 2 is movable, is designated by the numeral 3. The connecting-rod 2 has journaled therein in the usual manner a double crank-arm 4, attached to the transversely-extending engine-shaft 5. In engines of this-type the case 3 is usually filled with a quantity of oil or other lubricating fluid, into which the crank-arm 4 and the bearing thereof, with the connecting-rod, dip at every revolution, so that the latter is thorough] Y lubricated. In carrying out the pres which is usually employed has the level indicated in Fig. 1-that is to say, it extends u wardly to approximately the center of t e engine-shaft, so that half of the rotary movement of the crank-arm takes place whilethe same is submer ed in the lubri ant, the oil by reason of its lighter'weightbein at the level of the lubricant where the cran -arm passes throughthe same.

' Extending into the crank-case 3 at a oint intermediate of the hei ht of the lubricant and at the side where the downward movelace is a pipe 6, the inner end of which is bicated so as to form two branches having funnel-shaped ends 6 the edges of which are agranged approximately concentrically with 15 being spaced a art sothat they are filmed with the two halires of the crank-arm 4. The inner bifurcated end portion of the ipes enters the crank-case at the side at which the ent i1 vention the mixture of water and oil ment or overthrow of the crank-arm 3 takes e movement of the-crank-arm, said ends downward movement or throw of the brenkarm and crank-bearing take place and is dis-"' posed upwardly and 1n close proximity to the path of the crank-bearing. Said end is also arranged approximately tangentia t said path, as shown. At a pointre'xte ior 01' the crank-case 3 the ipc 6 is provided with a draw-off cock 7. Th the pipe 6 enters the side wall of a separator l 9, constituted by a covered cylinder or other suitable. receptacle, said outer end of the 6 being hen; upwardly and reaching almost to the top of said separator, asshown. pipe 10 leads from the separator!) at'apprdip'" matcly the level of the inner end of t e 6, and thence downwardly at the side crank-case, where itpasses through a 05 1i cylinder or drum 11, havi outlet 13, and "then tot an inlet 2", I

e extreme outer end of pipe l l s l where it is provided with bifurcated ends or branches 14, extendinginto close proximity to the path of the crank-bearing. The bifurcated end of the pipe 10 is dis )osed upwardly and approximately tan entia to the path of the crank bearing at t 1e side of the crank-' case at which saidbearin moves upwardly.

At the lower part of the separator 9 is arranged a downwardlyextending pipe 15, having a portion 16, leading laterally from the separator-cylinder, and an inclined outer portion 17, extending upwardly to approximately the levelof the pipes 6 and 10 in said cylinder. I

In practice the crank-case is filled with a mixture of oil and water up to the point indicated, and the separator 9 is filled with water. During the rotation of the crank-arm 4 when the same moves downwardly in proximity to the inner end 6 of the pipe 6 a small amount of the mixture of oil and water is forced outwardly through the pipe 6 and upwardly into stood. The 'oil entering said pipe flows downwardly through the same and through the ortion thereof surrounded by the coolingrum 11. By causing cold water to flow into the inlet 12 through said drum and out through the outlet 13 an efficacious-cooling action is exerted upon the oil, which then passes onto the lower end of the pipe 10 and the bifurcated ends 14 of the same, w-hore owing to the suction exerted thereon by 'the crank-arm in passing it is sucked up again into the crank-case. In this manner the oil ialemoved from the crank-case and cooled, so that its action upo he crank-bearing is always efficacious.

It is obvious that the water of condcnsation which escapes from the en ine-cylinders f and finds its way into the cran ecase is conducted oll' by the outlet-pi 1e 17 in such a manner as to maintain the lubricant at the proper level in both the crank-case and the so urator.

lhe improved ap mratus has the advantage that in addition to the efficient lubricating and cooling action upon the crank-bearing which may bepbtained the operation of the different parts 18 entirely automatic.

Having thus described my invention, I

claim as new and desire to secure by Letters I Patent i 1. In an apparatus for cooling and lubri-- eating crank ease engines, the combination,

the lubricant in the crank-case. The

with the crank-case and the crank-arm rotatable therein, of an exterior separator, and

pipes connecting said crank-case and separator and having their crank-case ends so disosed with relation to the crank-arm that the l a-tter will force out the lubricant by one and suck in the same from the other.

2. In an apparatus for cooling and lubrieating crank-case engines, in combination,

with the crank-case and the cr'ank-arm, pipes 4. In combination, with the crankcase and crank-arm, a separator, and pipes leading from said separator into the crank-case at opposite sides of the latter, the inner end portions of said pipes being disposed upwardly, one adjacent the downward throw of the crank-arm, and the other adjacent the upward throw thereof.

5. An apparatus for cooling and lubricating crank-case engines, com rising a separator' for the water and oil, an pipes extendi from said separator into the crank-case. an having their inner ends in close proximity and substantially ta ential to the path of the crank-bearing, sue 1 inner ends being disposed in substantially the same direction but at opposite points in the throw or path of the crank-arm.

6. In an apparatus for coolin and lubricating crank-case engines, a pipe leadin into the crank-case and having its inner en disposed in close proximity to the path of the crank-bearing.

7. In an apparatus for cooling and lubrieating crankcase engines, a pipeextendin into the crank-case and having its inner en disposed in close proximity and approximately tangential to the path of the crankbearing.

8. In an apparatus for cooling and lubricating crank-case engines, a pipe extendirf into the cranlecase and having a bifurcate' inner end,-the branches or le s formed at said end being alined with the alves of the crank-arm.

9. In an apparatus such as described, a

discharge-pipe for the mixed: water and oil extendin into the crank-case and havingits inner en bifurcated, the legs or branches formed at said end bein of funnel shape and alined with the halves o the crank-arm.

10. In an apparatus such as described, .a? discharge-pipefi for the lubricating mixture, said pipe extending into th crank-case and having interior funnel-shaped \branches fi the edges of which are arranged approximately concentrically with respect to the path or throw of the crank-arm.

11. The combination, with the crank-ease, of the pipe 6 leading therefrom, the separator 9 into which said pipe discharges, the .pipe 10 leading downwardly from the upper portion of said separator and entering the crank-ease at its lower end, and the cooling-drum 11 sur 1 o rounding the pipe 10. w In testimony that I'claim the foregoing as I my invention I have signed my name in presenee of two subseribi witnesses.

EORGE BROVV'N.v Witnesses:

HENRY G. Voss,

FRED FARRINGTON. 

